68results about How to "High difficulty" patented technology

Disclosed is a key generation apparatus which uses a finite commutative group defined by a number-theoretical (or arithmetical) function that can be substituted for the elliptic curve, thereby enabling the computational difficulty equivalent to that of breaking the elliptic curve cryptography. The key generation apparatus comprises a key setting part and a key generator. The key setting part sets a secret key α, and selects an element of the finite commutative group as a public key G. The key generator performs an addition operation defined for the finite commutative group on the public key G, thereby to multiply the public key G by the secret key α representing a scalar coefficient to generate a public key Y. The finite commutative group is a set of pairs (x,y) of a dependent variable y of a quadratic-hyperbolic function defined on a finite ring and an independent variable x of the quadratic-hyperbolic function.

The invention relates to a loading and unloading system for a distribution center type automated container terminal. The loading and unloading system comprises a plurality of quay cranes, a nearshore multipath rectangular-ambulatory-plane automatic transportation system, an elevated container automatic loading and unloading system, a storage yard, a container evacuating port side multipath rectangular-ambulatory-plane automatic transportation system, a container evacuating port transportation system, an annular special container channel and a control system. Compared with the scheme of an existing automated container terminal, the loading and unloading system for the distribution center type automated container terminal is advantaged in that the loading and unloading system is creative and unique, and is high in production efficiency, safety, automation degree and stability, and is simple in structure, simple to control and complete in scheme.

A block model constructing method for complex geological structures is provided. The method comprises the following steps: a) making a triangle mesh description of a layer plane or a fault plane; b) judging whether two triangles intersect, and finding out the intersection points if they intersect; c) performing a geometric consistency and topological consistency processing within every intersectant triangle; d) extracting an enclosing block to acquire an interface constituted of peripheral edges of the enclosing block, and defining a geological attribute of the enclosing block to form a three-dimensional model block. The method needs not to solve difficult equation sets with large computation, thus simplifying the constructing method.

The invention discloses a method for evaluating carbon emission of a green building. The method is characterized in that a load caused on an environment is evaluated by considering an emission load of all greenhouse gas within a building life cycle. The building life cycle includes all life cycle stages of the building from the starting to ending for comprehensive and systematic environment load estimation, wherein the all life cycle stages include planning and designing, building material production, construction, daily usage, maintenance and repairing, updating and dismantling, waste treatment, and recycling.

An ink jet recording apparatus, including nozzles each of which ejects a droplet of ink toward a recording sheet and which are arranged in one or more arrays in a first direction; pressure changing devices each of which changes a pressure of the ink to be supplied to a corresponding one of the nozzles so that the one nozzle ejects the droplet of ink, wherein the pressure changing devices are grouped into two groups arranged in a second direction perpendicular to the first direction; two flexible wiring cables which are electrically connected to the two groups of pressure changing devices, respectively, and which extend from the two groups of pressure changing devices in opposite directions, respectively, parallel to the second direction; two driver circuits which are provided on, and electrically connected to, the two wiring cables, respectively, and each of which outputs respective drive signals to drive the respective pressure changing devices of a corresponding one of the two groups; and a heat sink including two heat-conducting side walls which are opposite to each other in the second direction, a portion of each one of the two side walls contacting a corresponding one of the two driver circuits, and a heat-conducting connection portion which extends in the second direction and connects between the two side walls.

The invention provides a scan test latch macrocell and a scan test method. According to the scan test method, through a customized scan test macrocell, an ATPG test vector, based on a structure, used for a latch unit can be generated with a common scan test design method for a D trigger according to a special design process, the problems that testability design development cannot be easily performed on an existing digital special integrated circuit based on latch design, the fault coverage rate of the test vector is low, and time sequence analysis is complex are solved, the fault coverage rate of chip tests is substantially increased, the effectiveness and the completeness of the chip tests are guaranteed, and the method is mainly applied to the test vector development of the digital special integrated circuit based on latch design.

A fine pitch high density high-speed orthogonal card edge connector includes at least one signal transmission assembly which includes a plug-in connector, a press-fit connector, and a PCB board. A side of the PCB board is provided with a row of first pads, and a side of the PCB board adjacent to the side where the first pads are located is provided with a row of second pads. Each first pad corresponds to one second pad one by one through the wiring of the PCB board. An extension line of each first pad is perpendicular to an extension line of each second pad. The plug-in connector is mounted on the side of the PCB board provided with the first pads and is connected to the first pads. The press-fit connector is mounted on the side of the PCB board provided with the second pads and is connected to the second pads.

The invention discloses a method for treating underground arsenic water by using Fe (II) and Mn (II) coexisting with arsenic in underground water. The arsenic removing method comprises the steps of oxidation, micro-flocculation, contact filtration, backwashing water concentration, ferrimanganic particle FeMnOyHy and the like. In addition, an arsenic removing activity filter membrane with arsenic removing activity can be formed on the filter medium surface load of a contact filtration pond and can be used as another barrier for removing arsenic. The method is used for removing arsenic in a drinking water source, treatment water can reach the limit requirements (smaller than 10 mug/L) for arsenic in latest national Standards for Drinking Water Quality (GB5749-2006), and the indexes of ferrum, manganese, turbidity and the like can also reach the national standards. In addition, the method can be also used for removing heavy metals such as copper, chromium, cadmium, lead, antimony and the like and contaminants such as ferrum, manganese and the like in the drinking water source.

A hand gesture control system to be operated via hand gestures to receive a call from a mobile phone includes: a casing; a control unit installed inside the casing; a hand gesture recognition unit installed inside the casing, including an image capturing module and a hand gesture recognition module, wherein the image capturing module captures an image of a hand gesture of a user and transmits to the gesture recognition module for comparison, which feeds back an operation instruction to the control unit corresponding to the comparison; a wireless transmission unit communicates with the mobile phone via a wireless communication protocol for establishing communication between the mobile phone and the control unit; a microphone disposed at an exterior of the casing in order to receive a user's voice; and a loudspeaker disposed at an exterior of the casing in order to output the user's voice from the microphone.

An Infrared Radiation (IR) sensing device comprises a lens module, an IR pass filter, and an optical sensor. The lens module is utilized for focusing light. The IR pass filter comprises an optical coating, and a Color Filter Array (CFA) module. The optical coating is utilized for blocking light with wavelength around a predetermined range. The CFA module is utilized for blocking light with wavelength around 400 nm to 780 nm. The optical sensor for absorbing photons of light after being blocked by the IR pass filter on the optical path and accordingly generating an electrical signal. With the help of the CFAs, the range of the wavelength that the optical coating has to block becomes smaller, which greatly reduces the required number of layers of the optical coating.

The present invention relates to a new guide actuator with high radial direction load capability, which has the purpose of providing a directional force bearing way to common loading method to make the actuator can bear load and transmit with higher accuracy. On design, the present invention has grooves bearing load at the center of the bottom of the U-shape guide structure, and a table is set between two inner side walls of the U-shape guide structure, grooves corresponding to the grooves of the U-shape guide structure being set at the bottom of the table, rollers being set between grooves and grooves to make the table and the U-shape guide structure slide respect to each other with very low friction due to rolling motion of the rollers with high radial load capability.

A ball screw (1) used under agitated oil lubrication has a screw shaft (2) formed with a helical screw groove (2a) on its outer circumferential surface. A nut (3) is adapted to fit onto the screw shaft (2). The nut (3) has a helical screw groove (3a) on its inner circumferential surface. A plurality of balls (4) is contained in a rolling passage formed between oppositely arranged screw grooves (2a and 3a). A bridge member (5) is adapted to fit into a bridge window (6) formed through a barrel wall of the nut (3). The bridge member (5) has a connecting groove (5a) to enable the balls (4) to bypass the rolling passage to move into a radially outward circumferential passage. A notch is formed in the bridge member (5) to intercommunicate the outer and inner circumferential portions of the nut (3).

The present invention provides a surface-mounted RGB-LED packaging module and a preparing method thereof, a protective layer is arranged on the light emitting units, the number of the light emitting units is at least two, each light emitting unit includes four mutually independent upper pads and a group of RGB LED chips, the RGB LED chips are arranged on any one of the upper pads and connected with the other three upper pads by keys and wires, each upper pad is provided with a metal hole that penetrates the substrate and is conductive up and down, lower pads are arranged on the reverse side of the substrate corresponding to the metal holes, and the lower pads are independent from each other, so the production efficiency of LEDs in subsequent production and application is greatly improved, and the production cost is greatly reduced.

The invention provides a method for performing abrasion resistant surface treatment on a surface of a rotary member. The abrasion resistant surface treatment method is characterized by including steps of: dividing the surface of the rotary member into a plurality of areas A₁, A₂ depending on peripheral speed or treatment difficulty in surface treatment of the rotary member 1; spraying an abrasion resistant material on a surface of a first area where the peripheral speed is the highest, or the treatment difficulty is low, by a high speed flame spraying method; and spraying an abrasion resistant material on a surface of the second area with high treatment difficulty, by an arc spraying method.

A method of producing hybrid seeds for annual cotton by cultivating perennially, including the steps of: 1) planting annual cotton parent strains for hybridization and identifying the natural wintering capability thereof; 2) for annual cotton parent strains incapable of wintering naturally, taking a perennial cotton capable of wintering naturally as a rootstock and the annual cotton incapable of wintering naturally as a scionwood for grafting, and carrying out the perennial root culture of the obtained grafted plant; for annual cotton parent strains capable of wintering naturally, directly planting the strains and carrying out the perennial root culture of seedling plants thereof, or carrying out the perennial root culture of grafted plants thereof obtained according to the above grafting method; and (3) hybridizing the seedling plants and/or the grafted plants to produce seeds in the year of planting and/or grafting and period of perennial cultivation.

The invention discloses a cultivation process under a forest of zhijin bamboo fungus. The cultivating process comprises the following steps of preparing mushroom-sticks with zhijin bamboo fungus mycelium according to a conventional method; transferring the mushroom-sticks with the zhijin bamboo fungus mycelium to a forest land with more than 70% covered canopy density for cultivation. The processhas the advantages that the cultivation process adopts soil under the forest to cultivate the mushroom-sticks to achieve the natural environment cultivation of the fungus, ensures that the mycelium growth environment is ventilated, and easily removes pests and diseases, reduces the phenomenon of low yield, dead mushrooms and rotten mushrooms' caused by lack of oxygen in the process of mycelium cultivation, and the yield of the mycelium is improved. The cultivation process improves the yield of the zhijin bamboo fungus compared with a traditional planting process, reduces the production cost, shortens the cultivation period, avoids the risk of mass production, and effectively promotes the development of the zhijin bamboo fungus poverty alleviation industry.

The invention discloses a primer for detecting WRAP53 gene mutation of a patient with dyskeratosis congenita and application of the primer. The primer for detecting the WRAP53 gene mutation condition comprises a primer for amplifying a whole exon sequence of the WRAP53 gene as well as a sequencing primer for detecting the gene of WRAP53. By virtue of the primer, the mutation of the whole exon of the WRAP53 gene in the patient with the dyskeratosis congenital can be rapidly detected. A detection result finished by virtue of the primer is accurate, and the mutation condition of the whole exon sequence of the WRAP53 gene in the patient with the dyskeratosis congenital can be rapidly detected, so that the primer has important reference significances on the early intervention and the early treatment.

The present invention relates to a perfluoropolyether group-containing silane compound represented by formula (1): Rf—X¹—X²—NQ_kT_2-k, (1), and a method for preparing the same. The present invention also relates to a perfluoropolyether group-containing silane compound represented by formula (2),

and a method for preparing the same. The present invention also relates to a perfluoropolyether group-containing silane compound represented by formula (3),

and a method for preparing the same. The perfluoropolyether group-containing silane compound of the present invention can be used for a surface treatment agent so that the substrates such as glass etc processed by the surface treatment agent are excellent in anti-fouling, anti-fingerprint, scrape resistant and abrasion resistant performances. Moreover, the preparation method of each of the compounds of the present invention is simple in process, easy to operate and implement.

The present disclosure relates to the field of early non-invasive diagnosis, and specifically, to a method of determining a virtual hepatic venous pressure gradient. The method includes: constructing a 3-dimensional (3D) hepatic vein-portal vein model; establishing a finite element division mathematical model; and applying fluid dynamics to compute and simulate a virtual hepatic venous pressure gradient (vHVPG). The method optimizes and improves a more complete 3D hepatic vein-portal vein model, finite element division, and fluid dynamic simulation computation, constructing and validating a new vHVPG determination technology providing better diagnosis, providing a safe, non-invasive, accurate, and quantitative method for early non-invasive diagnosis of a portal vein high pressure patient.

The invention discloses a modularized hydrogen energy ship electric transmission power system and method. The system is provided with a methanol reforming hydrogen production module, a fuel cell module, a power motor module and a low-pressure adsorption hydrogen storage module, the first feeding end of the fuel cell module is connected with the methanol reforming hydrogen production module, the second feeding end of the fuel cell module is connected with the low-pressure adsorption hydrogen storage module, and the feeding end of the low-pressure adsorption hydrogen storage module is connected with the methanol reforming hydrogen production module; and the output end of the fuel cell module is connected with the direct current transformation module, and the output end of the direct current transformation module is connected with the power motor module. Existing high-pressure hydrogen storage is generally 70 MPa, a fuel cell has potential safety hazards, and low-pressure adsorption storage is adopted in the method, so that the method is safe and reliable; and methanol water reforming hydrogen production heating needs about 10 minutes, when the ship is started, the low-pressure adsorption hydrogen storage module is used for providing hydrogen, meanwhile, the storage battery module provides supplementary electric power, and the requirement for high-power power in the initial starting stage of the ship is met.

The invention discloses a block chain-based building construction quality tracing method. A system is logically divided into a base layer, a core layer and an application layer; the base layer comprises an operation layer, an infrastructure layer and a data layer; the operation layer comprises a park engineering quality chain, engineering design, material supply and debugging and acceptance engineering construction sub-items; the infrastructure layer comprises hardware such as RFID, a material two-dimensional code, a temperature and humidity sensor, video monitoring and the like and BIM model software; the quality management data of the data layer is the summary of data acquired by the operation layer and the infrastructure layer; the core layer comprises a network layer, a consensus layer and a contract layer; the network layer is based on a P2P network, a propagation mechanism and a verification mechanism, and the consensus layer is based on POW, POS and DPOS consensus mechanisms; the contract layer comprises quality standards such as a quality acceptance specification, a quality specification and an intelligent contract. According to the method, a distributed architecture is adopted, decentralized data cannot be lost, meanwhile, tracing is easy in the using process in quality management, and information is more complete.

The present application relates to the technical field of electronics and provides a linear vibrating motor comprising a motor housing, a stator, a vibrator and an elastic support member for suspending the vibrator in the motor housing and for supporting the vibrator and providing an elastic restoring force; the motor housing comprises a first lateral housing and a second lateral housing; the first lateral housing comprises a first lateral plate, as well as a second lateral plate and a third lateral plate that are disposed at two ends of the first lateral plate respectively; the second lateral housing comprises a fourth lateral plate, as well as a fifth lateral plate and a sixth lateral plate that are disposed at two ends of the fourth lateral plate respectively; and the first lateral housing and the second lateral housing are fastened to form a closed space that accommodates the stator.